Comparison of the effects of the policy of increasing the price of water and the implementation of the pressure irrigation method on the cultivation pattern of the farmers of Erzuye city by using positive mathematical programming.

Zare Mehrjerdi, Mohammad Reza; Mirzadeh, Mohammad Hasan; Dehghani, Ali; Mirzaei, Hamidreza

doi:10.22125/iwe.2024.442957.1793

Comparison of the effects of the policy of increasing the price of water and the implementation of the pressure irrigation method on the cultivation pattern of the farmers of Erzuye city by using positive mathematical programming.

Document Type : Original Article

Authors

Mohammad Reza Zare Mehrjerdi ¹

Mohammad Hasan Mirzadeh ²

Ali Dehghani ³

Hamidreza Mirzaei ⁴

¹ Associate Professor, Department of Agricultural Economics, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran

² Master of Agricultural Economics, Shahid Bahonar University of Kerman, Kerman, Iran

³ PhD student in Agricultural Economics, Shahid Bahonar University of Kerman, Kerman, Iran,

⁴ Associate Professor, Department of Agricultural Economics, Shahid Bahonar University of Kerman, Kerman, Iran

10.22125/iwe.2024.442957.1793

Abstract

Since water is one of the most important factors affecting the production and performance of agricultural products, the efficient management of this scarce resource is considered one of the important fields of agricultural development. The purpose of this research is to analyze and compare the cultivation pattern and the gross profit of farmers in two cases due to the implementation of price and non-price water policies and the implementation of pressure irrigation system in the fields of Erzuye city, one of Kerman province. Irrigation water price policy (increase in water extraction cost) was considered under scenarios of 25, 50, 75 and 100 percent. To achieve these goals, the positive mathematical programming model was used. In order to achieve practical results, production function with constant elasticity of substitution and non-linear cost function were added to this model. The required data were collected using simple random sampling method and completing 100 questionnaires in the crop year of 1401-1400. The obtained results showed that with the adoption of the water price policy, the cultivated area of the crops with the least water consumption increased and other selected products faced a decrease in the cultivated area. Under the last scenario, the gross profit of the model decreased by 26% and at the same time the water consumption decreased by 10.5%. Comparing showed that the implementation of this irrigation system compared to the observed level, increases the net profit of the model by 30.75% and reduces the water consumption of selected crops by 210%

Keywords

drip irrigation

cultivation pattern

evaluation

positive mathematical programming

net profit

Subjects